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ubuntuUbuntuUSN-5168-4
HistoryDec 07, 2021 - 12:00 a.m.

NSS regression

2021-12-0700:00:00
ubuntu.com
60

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

10 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.005 Low

EPSS

Percentile

77.0%

JSON

Releases

  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • nss - Network Security Service library

Details

USN-5168-3 fixed a vulnerability in NSS. Unfortunately that update introduced
a regression that could break SSL connections. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Tavis Ormandy discovered that NSS incorrectly handled verifying DSA/RSA-PSS
signatures. A remote attacker could use this issue to cause NSS to crash,
resulting in a denial of service, or possibly execute arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu16.04noarchlibnss3< 2:3.28.4-0ubuntu0.16.04.14+esm2UNKNOWN
Ubuntu16.04noarchlibnss3< 2:3.28.4-0ubuntu0.16.04.14UNKNOWN
Ubuntu16.04noarchlibnss3-1d< 2:3.28.4-0ubuntu0.16.04.14UNKNOWN
Ubuntu16.04noarchlibnss3-dbg< 2:3.28.4-0ubuntu0.16.04.14UNKNOWN
Ubuntu16.04noarchlibnss3-dbgsym< 2:3.28.4-0ubuntu0.16.04.14UNKNOWN
Ubuntu16.04noarchlibnss3-dev< 2:3.28.4-0ubuntu0.16.04.14UNKNOWN
Ubuntu16.04noarchlibnss3-nssdb< 2:3.28.4-0ubuntu0.16.04.14UNKNOWN
Ubuntu16.04noarchlibnss3-tools< 2:3.28.4-0ubuntu0.16.04.14UNKNOWN
Ubuntu16.04noarchlibnss3-tools-dbgsym< 2:3.28.4-0ubuntu0.16.04.14UNKNOWN
Ubuntu14.04noarchlibnss3< 2:3.28.4-0ubuntu0.14.04.5+esm10UNKNOWN
Rows per page:
1-10 of 171

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9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

10 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.005 Low

EPSS

Percentile

77.0%

JSON
Related for USN-5168-4
nessus68photon6debian3amazon7osv9openvas35archlinux2redhat19cbl_mariner2ibm3veracode1oraclelinux3centos1cloudfoundry1fedora2thn1cnvd1ubuntu3debiancve2freebsd1mozilla2suse4alpinelinux1mageia1redhatcve2cloudlinux2cve2slackware2rocky1f52prion2almalinux1googleprojectzero1ubuntucve2trellix2gentoo1rosalinux1